Apparatus, system and method of dynamic allocation using a grant frame

ABSTRACT

Some demonstrative embodiments include apparatuses, devices, systems and methods of dynamic allocation using a grant frame. For example, a wireless station may be able to generate a grant frame including a duration field and a Dynamic Allocation Info field, the Dynamic Allocation Info field including an allocation duration subfield and an access mode subfield, the access mode subfield to indicate an access mode of an allocation according to the grant frame; and to transmit the grant frame.

CROSS REFERENCE

This application claims the benefit of and priority from U.S.Provisional Patent Application No. 62/119,200 entitled “Apparatus,System and Method of Dynamic Allocation Using a Grant Frame”, filed Feb.22, 2015, the entire disclosure of which is incorporated herein byreference.

TECHNICAL FIELD

Embodiments described herein generally relate to dynamic allocationusing a grant frame.

BACKGROUND

A wireless communication network in a millimeter-wave band may providehigh-speed data access for users of wireless communication devices.

A wireless communication station may communicate a grant frame, whichmay include fields and subfields configured for time allocationpurposes. For example, the grant frame may be configured according toIEEE 802.11ad-2012 (“IEEE P802.11ad-2012, IEEE Standard for InformationTechnology—Telecommunications and Information Exchange BetweenSystems—Local and Metropolitan Area Networks—Specific Requirements—Part11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY)Specifications—Amendment 3: Enhancements for Very High Throughput in the60 GHz Band”, 28 Dec., 2012).

However, the current definition of fields and subfields of the grantframe according to IEEE 802.11ad-2012 may not be applicable, efficientand/or sufficient, e.g., at least in some scenarios and/or use cases.

BRIEF DESCRIPTION OF THE DRAWINGS

For simplicity and clarity of illustration, elements shown in thefigures have not necessarily been drawn to scale. For example, thedimensions of some of the elements may be exaggerated relative to otherelements for clarity of presentation. Furthermore, reference numeralsmay be repeated among the figures to indicate corresponding or analogouselements. The figures are listed below.

FIG. 1 is a schematic block diagram illustration of a system, inaccordance with some demonstrative embodiments.

FIG. 2 is a schematic illustration of a grant frame, in accordance withsome demonstrative embodiments.

FIG. 3 is a schematic illustration of a dynamic allocation informationfield, in accordance with some demonstrative embodiments.

FIG. 4 is a schematic flow-chart illustration of a method of dynamicallocation using a grant frame, in accordance with some demonstrativeembodiments.

FIG. 5 is a schematic flow-chart illustration of a method of dynamicallocation using a grant frame, in accordance with some demonstrativeembodiments.

FIG. 6 is a schematic illustration of a product of manufacture, inaccordance with some demonstrative embodiments.

DETAILED DESCRIPTION

In the following detailed description, numerous specific details are setforth in order to provide a thorough understanding of some embodiments.However, it will be understood by persons of ordinary skill in the artthat some embodiments may be practiced without these specific details.In other instances, well-known methods, procedures, components, unitsand/or circuits have not been described in detail so as not to obscurethe discussion.

Discussions herein utilizing terms such as, for example, “processing”,“computing”, “calculating”, “determining”, “establishing”, “analyzing”,“checking”, or the like, may refer to operation(s) and/or process(es) ofa computer, a computing platform, a computing system, or otherelectronic computing device, that manipulate and/or transform datarepresented as physical (e.g., electronic) quantities within thecomputer's registers and/or memories into other data similarlyrepresented as physical quantities within the computer's registersand/or memories or other information storage medium that may storeinstructions to perform operations and/or processes.

The terms “plurality” and “a plurality”, as used herein, include, forexample, “multiple” or “two or more”. For example, “a plurality ofitems” includes two or more items.

References to “one embodiment”, “an embodiment”, “demonstrativeembodiment”, “various embodiments” etc., indicate that the embodiment(s)so described may include a particular feature, structure, orcharacteristic, but not every embodiment necessarily includes theparticular feature, structure, or characteristic. Further, repeated useof the phrase “in one embodiment” does not necessarily refer to the sameembodiment, although it may.

As used herein, unless otherwise specified the use of the ordinaladjectives “first”, “second”, “third” etc., to describe a common object,merely indicate that different instances of like objects are beingreferred to, and are not intended to imply that the objects so describedmust be in a given sequence, either temporally, spatially, in ranking,or in any other manner.

Some embodiments may be used in conjunction with various devices andsystems, for example, a User Equipment (UE), a Mobile Device (MD), awireless station (STA), a Personal Computer (PC), a desktop computer, amobile computer, a laptop computer, a notebook computer, a tabletcomputer, an Internet of Things (IoT) device, a sensor device, a servercomputer, a handheld computer, a handheld device, a Personal DigitalAssistant (PDA) device, a handheld PDA device, an on-board device, anoff-board device, a hybrid device, a vehicular device, a non-vehiculardevice, a mobile or portable device, a consumer device, a non-mobile ornon-portable device, a wireless communication station, a wirelesscommunication device, a wireless Access Point (AP), a wired or wirelessrouter, a wired or wireless modem, a video device, an audio device, anaudio-video (A/V) device, a wired or wireless network, a wireless areanetwork, a Wireless Video Area Network (WVAN), a Local Area Network(LAN), a Wireless LAN (WLAN), a Personal Area Network (PAN), a WirelessPAN (WPAN), and the like.

Some embodiments may be used in conjunction with devices and/or networksoperating in accordance with existing Wireless-Gigabit-Alliance (WGA)specifications (Wireless Gigabit Alliance, Inc WiGig MAC and PHYSpecification Version 1.1, April 2011, Final specification) and/orfuture versions and/or derivatives thereof, devices and/or networksoperating in accordance with existing IEEE 802.11 standards (IEEE802.11-2012, IEEE Standard for Information technology—Telecommunicationsand information exchange between systems Local and metropolitan areanetworks—Specific requirements Part 11: Wireless LAN Medium AccessControl (MAC) and Physical Layer (PHY) Specifications, Mar. 29, 2012;IEEE802.11ac-2013 (“IEEE P802.11ac-2013, IEEE Standard for InformationTechnology—Telecommunications and Information Exchange BetweenSystems—Local and Metropolitan Area Networks—Specific Requirements—Part11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY)Specifications—Amendment 4: Enhancements for Very High Throughput forOperation in Bands below 6 GHz”, December, 2013); IEEE 802.11ad (“IEEEP802.11ad-2012, IEEE Standard for InformationTechnology—Telecommunications and Information Exchange BetweenSystems—Local and Metropolitan Area Networks—Specific Requirements—Part11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY)Specifications—Amendment 3: Enhancements for Very High Throughput in the60 GHz Band”, 28 Dec., 2012); IEEE-802.11REVmc (“IEEE802.11-REVmc™/D3.0, June 2014 draft standard for Informationtechnology—Telecommunications and information exchange between systemsLocal and metropolitan area networks Specific requirements; Part 11:Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY)Specification”); IEEE802.11-ay (P802.11ay Standard for InformationTechnology—Telecommunications and Information Exchange Between SystemsLocal and Metropolitan Area Networks—Specific Requirements Part 11:Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY)Specifications—Amendment: Enhanced Throughput for Operation inLicense-Exempt Bands Above 45 GHz)) and/or future versions and/orderivatives thereof, devices and/or networks operating in accordancewith existing Wireless Fidelity (WiFi) Alliance (WFA) Peer-to-Peer (P2P)specifications (WiFi P2P technical specification, version 1.2, 2012)and/or future versions and/or derivatives thereof, devices and/ornetworks operating in accordance with existing cellular specificationsand/or protocols, e.g., 3rd Generation Partnership Project (3GPP), 3GPPLong Term Evolution (LTE) and/or future versions and/or derivativesthereof, units and/or devices which are part of the above networks, andthe like.

Some embodiments may be used in conjunction with one way and/or two-wayradio communication systems, cellular radio-telephone communicationsystems, a mobile phone, a cellular telephone, a wireless telephone, aPersonal Communication Systems (PCS) device, a PDA device whichincorporates a wireless communication device, a mobile or portableGlobal Positioning System (GPS) device, a device which incorporates aGPS receiver or transceiver or chip, a device which incorporates an RFIDelement or chip, a Multiple Input Multiple Output (MIMO) transceiver ordevice, a Single Input Multiple Output (SIMO) transceiver or device, aMultiple Input Single Output (MISO) transceiver or device, a devicehaving one or more internal antennas and/or external antennas, DigitalVideo Broadcast (DVB) devices or systems, multi-standard radio devicesor systems, a wired or wireless handheld device, e.g., a Smartphone, aWireless Application Protocol (WAP) device, or the like.

Some embodiments may be used in conjunction with one or more types ofwireless communication signals and/or systems, for example, RadioFrequency (RF), Infra Red (IR), Frequency-Division Multiplexing (FDM),Orthogonal FDM (OFDM), Orthogonal Frequency-Division Multiple Access(OFDMA), FDM Time-Division Multiplexing (TDM), Time-Division MultipleAccess (TDMA), Multi-User MIMO (MU-MIMO), Spatial Division MultipleAccess (SDMA), Extended TDMA (E-TDMA), General Packet Radio Service(GPRS), extended GPRS, Code-Division Multiple Access (CDMA), WidebandCDMA (WCDMA), CDMA 2000, single-carrier CDMA, multi-carrier CDMA,Multi-Carrier Modulation (MDM), Discrete Multi-Tone (DMT), Bluetooth®,Global Positioning System (GPS), Wi-Fi, Wi-Max, ZigBee™, Ultra-Wideband(UWB), Global System for Mobile communication (GSM), 2G, 2.5G, 3G, 3.5G,4G, Fifth Generation (5G), or Sixth Generation (6G) mobile networks,3GPP, Long Term Evolution (LTE), LTE advanced, Enhanced Data rates forGSM Evolution (EDGE), or the like. Other embodiments may be used invarious other devices, systems and/or networks.

The term “wireless device”, as used herein, includes, for example, adevice capable of wireless communication, a communication device capableof wireless communication, a communication station capable of wirelesscommunication, a portable or non-portable device capable of wirelesscommunication, or the like. In some demonstrative embodiments, awireless device may be or may include a peripheral that is integratedwith a computer, or a peripheral that is attached to a computer. In somedemonstrative embodiments, the term “wireless device” may optionallyinclude a wireless service.

The term “communicating” as used herein with respect to a communicationsignal includes transmitting the communication signal and/or receivingthe communication signal. For example, a communication unit, which iscapable of communicating a communication signal, may include atransmitter to transmit the communication signal to at least one othercommunication unit, and/or a communication receiver to receive thecommunication signal from at least one other communication unit. Theverb communicating may be used to refer to the action of transmitting orthe action of receiving. In one example, the phrase “communicating asignal” may refer to the action of transmitting the signal by a firstdevice, and may not necessarily include the action of receiving thesignal by a second device. In another example, the phrase “communicatinga signal” may refer to the action of receiving the signal by a firstdevice, and may not necessarily include the action of transmitting thesignal by a second device.

Some demonstrative embodiments may be used in conjunction with a WLAN,e.g., a wireless fidelity (WiFi) network. Other embodiments may be usedin conjunction with any other suitable wireless communication network,for example, a wireless area network, a “piconet”, a WPAN, a WVAN andthe like.

Some demonstrative embodiments may be used in conjunction with awireless communication network communicating over a frequency band of 60GHz. However, other embodiments may be implemented utilizing any othersuitable wireless communication frequency bands, for example, anExtremely High Frequency (EHF) band (the millimeter wave (mmWave)frequency band), e.g., a frequency band within the frequency band ofbetween 20 Ghz and 300 GHZ, a frequency band above 45 GHZ, a frequencyband below 20 GHZ, e.g., a Sub 1 GHZ (S1G) band, a 2.4 GHz band, a 5 GHZband, a WLAN frequency band, a WPAN frequency band, a frequency bandaccording to the WGA specification, and the like.

The term “antenna”, as used herein, may include any suitableconfiguration, structure and/or arrangement of one or more antennaelements, components, units, assemblies and/or arrays. In someembodiments, the antenna may implement transmit and receivefunctionalities using separate transmit and receive antenna elements. Insome embodiments, the antenna may implement transmit and receivefunctionalities using common and/or integrated transmit/receiveelements. The antenna may include, for example, a phased array antenna,a single element antenna, a set of switched beam antennas, and/or thelike.

The phrases “directional multi-gigabit (DMG)” and “directional band”(DBand), as used herein, may relate to a frequency band wherein theChannel starting frequency is above 45 GHz. In one example, DMGcommunications may involve one or more directional links to communicateat a rate of multiple gigabits per second, for example, at least 1Gigabit per second, e.g., 7 Gigabit per second, or any other rate.

Some demonstrative embodiments may be implemented by a DMG STA (alsoreferred to as a “mmWave STA (mSTA)”), which may include for example, aSTA having a radio transmitter, which is capable of operating on achannel that is within the DMG band. The DMG STA may perform otheradditional or alternative functionality. Other embodiments may beimplemented by any other apparatus, device and/or station.

Reference is made to FIG. 1, which schematically illustrates a system100, in accordance with some demonstrative embodiments.

As shown in FIG. 1, in some demonstrative embodiments, system 100 mayinclude one or more wireless communication devices. For example, system100 may include a first wireless communication device 102, and/or asecond wireless communication device 140.

In some demonstrative embodiments, devices 102 and/or 140 may include amobile device or a non-mobile, e.g., a static, device.

For example, devices 102 and/or 140 may include, for example, a UE, anMD, a STA, an AP, a PC, a desktop computer, a mobile computer, a laptopcomputer, an Ultrabook™ computer, a notebook computer, a tabletcomputer, a server computer, a handheld computer, an Internet of Things(IoT) device, a sensor device, a handheld device, a PDA device, ahandheld PDA device, an on-board device, an off-board device, a hybriddevice (e.g., combining cellular phone functionalities with PDA devicefunctionalities), a consumer device, a vehicular device, a non-vehiculardevice, a mobile or portable device, a non-mobile or non-portabledevice, a mobile phone, a cellular telephone, a PCS device, a PDA devicewhich incorporates a wireless communication device, a mobile or portableGPS device, a DVB device, a relatively small computing device, anon-desktop computer, a “Carry Small Live Large” (CSLL) device, an UltraMobile Device (UMD), an Ultra Mobile PC (UMPC), a Mobile Internet Device(MID), an “Origami” device or computing device, a device that supportsDynamically Composable Computing (DCC), a context-aware device, a videodevice, an audio device, an A/V device, a Set-Top-Box (STB), a Blu-raydisc (BD) player, a BD recorder, a Digital Video Disc (DVD) player, aHigh Definition (HD) DVD player, a DVD recorder, a HD DVD recorder, aPersonal Video Recorder (PVR), a broadcast HD receiver, a video source,an audio source, a video sink, an audio sink, a stereo tuner, abroadcast radio receiver, a flat panel display, a Personal Media Player(PMP), a digital video camera (DVC), a digital audio player, a speaker,an audio receiver, an audio amplifier, a gaming device, a data source, adata sink, a Digital Still camera (DSC), a media player, a Smartphone, atelevision, a music player, or the like.

In some demonstrative embodiments, device 102 may include, for example,one or more of a processor 191, an input unit 192, an output unit 193, amemory unit 194, and/or a storage unit 195; and/or device 140 mayinclude, for example, one or more of a processor 181, an input unit 182,an output unit 183, a memory unit 184, and/or a storage unit 185.Devices 102 and/or 140 may optionally include other suitable hardwarecomponents and/or software components. In some demonstrativeembodiments, some or all of the components of one or more of devices 102and/or 140 may be enclosed in a common housing or packaging, and may beinterconnected or operably associated using one or more wired orwireless links. In other embodiments, components of one or more ofdevices 102 and/or 140 may be distributed among multiple or separatedevices.

Processor 191 and/or processor 181 includes, for example, a CentralProcessing Unit (CPU), a Digital Signal Processor (DSP), one or moreprocessor cores, a single-core processor, a dual-core processor, amultiple-core processor, a microprocessor, a host processor, acontroller, a plurality of processors or controllers, a chip, amicrochip, one or more circuits, circuitry, a logic unit, an IntegratedCircuit (IC), an Application-Specific IC (ASIC), or any other suitablemulti-purpose or specific processor or controller. Processor 191executes instructions, for example, of an Operating System (OS) ofdevice 102 and/or of one or more suitable applications. Processor 181executes instructions, for example, of an Operating System (OS) ofdevice 140 and/or of one or more suitable applications.

Input unit 192 and/or input unit 182 includes, for example, a keyboard,a keypad, a mouse, a touch-screen, a touch-pad, a track-ball, a stylus,a microphone, or other suitable pointing device or input device. Outputunit 193 and/or output unit 183 includes, for example, a monitor, ascreen, a touch-screen, a flat panel display, a Light Emitting Diode(LED) display unit, a Liquid Crystal Display (LCD) display unit, aplasma display unit, one or more audio speakers or earphones, or othersuitable output devices.

Memory unit 194 and/or memory unit 184 includes, for example, a RandomAccess Memory (RAM), a Read Only Memory (ROM), a Dynamic RAM (DRAM), aSynchronous DRAM (SD-RAM), a flash memory, a volatile memory, anon-volatile memory, a cache memory, a buffer, a short term memory unit,a long term memory unit, or other suitable memory units. Storage unit195 and/or storage unit 185 includes, for example, a hard disk drive, afloppy disk drive, a Compact Disk (CD) drive, a CD-ROM drive, a DVDdrive, or other suitable removable or non-removable storage units.Memory unit 194 and/or storage unit 195, for example, may store dataprocessed by device 102. Memory unit 184 and/or storage unit 185, forexample, may store data processed by device 140.

In some demonstrative embodiments, wireless communication devices 102and/or 140 may be capable of communicating content, data, informationand/or signals via a wireless medium (WM) 103. In some demonstrativeembodiments, wireless medium 103 may include, for example, a radiochannel, a cellular channel, an RF channel, a Wireless Fidelity (WiFi)channel, an IR channel, a Bluetooth (BT) channel, a Global NavigationSatellite System (GNSS) Channel, and the like.

In some demonstrative embodiments, WM 103 may include a directionalchannel. For example, WM 103 may include a millimeter-wave (mmWave)wireless communication channel.

In some demonstrative embodiments, WM 103 may include a DMG channel. Inother embodiments, WM 103 may include any other additional oralternative directional channel.

In other embodiments, WM 103 may include any other type of channel overany other frequency band.

In some demonstrative embodiments, devices 102 and/or 140 may performthe functionality of one or more wireless stations, e.g., as describedbelow.

In some demonstrative embodiments, devices 102 and/or 140 may performthe functionality of one or more DMG stations.

In other embodiments, devices 102 and/or 140 may perform thefunctionality of any other wireless device and/or station, e.g., a WLANSTA, a WiFi STA, and the like.

In some demonstrative embodiments, devices 102 and/or 140 may includeone or more radios including circuitry and/or logic to perform wirelesscommunication between devices 102, 140 and/or one or more other wirelesscommunication devices. For example, device 102 may include a radio 114,and/or device 140 may include a radio 144.

In some demonstrative embodiments, radios 114 and/or 144 may include oneor more wireless receivers (Rx) including circuitry and/or logic toreceive wireless communication signals, RF signals, frames, blocks,transmission streams, packets, messages, data items, and/or data. Forexample, radio 114 may include a receiver 116, and/or radio 144 mayinclude a receiver 146.

In some demonstrative embodiments, radios 114 and/or 144 may include oneor more wireless transmitters (Tx) including circuitry and/or logic tosend wireless communication signals, RF signals, frames, blocks,transmission streams, packets, messages, data items, and/or data. Forexample, radio 114 may include a transmitter 118, and/or radio 144 mayinclude a transmitter 148.

In some demonstrative embodiments, radios 114 and/or 144 may includecircuitry, logic, modulation elements, demodulation elements,amplifiers, analog to digital and digital to analog converters, filters,and/or the like. For example, radios 114 and/or 144 may include or maybe implemented as part of a wireless Network Interface Card (NIC), andthe like.

In some demonstrative embodiments, radios 114 and/or 144 may include, ormay be associated with, one or more antennas 107 and/or 147,respectively.

In one example, device 102 may include a single antenna 107. In otherexample, device 102 may include two or more antennas 107.

In one example, device 140 may include a single antenna 147. In otherexample, device 140 may include two or more antennas 147.

Antennas 107 and/or 147 may include any type of antennas suitable fortransmitting and/or receiving wireless communication signals, blocks,frames, transmission streams, packets, messages and/or data. Forexample, antennas 107 and/or 147 may include any suitable configuration,structure and/or arrangement of one or more antenna elements,components, units, assemblies and/or arrays. Antennas 107 and/or 147 mayinclude, for example, antennas suitable for directional communication,e.g., using beamforming techniques. For example, antennas 107 and/or 147may include a phased array antenna, a multiple element antenna, a set ofswitched beam antennas, and/or the like. In some embodiments, antennas107 and/or 147 may implement transmit and receive functionalities usingseparate transmit and receive antenna elements. In some embodiments,antennas 107 and/or 147 may implement transmit and receivefunctionalities using common and/or integrated transmit/receiveelements.

In some demonstrative embodiments, antennas 107 and/or 147 may include adirectional antenna, which may be steered to a plurality of beamdirections.

In some demonstrative embodiments, device 102 may include a controller124, and/or device 140 may include a controller 154. Controllers 124and/or 154 may be configured to perform one or more communications, maygenerate and/or communicate one or more messages and/or transmissions,and/or may perform one or more functionalities, operations and/orprocedures between devices 102 and/or 140 and/or one or more otherdevices, e.g., as described below.

In some demonstrative embodiments, controllers 124 and/or 154 mayinclude circuitry and/or logic, e.g., one or more processors includingcircuitry and/or logic, memory circuitry and/or logic, Media-AccessControl (MAC) circuitry and/or logic, Physical Layer (PHY) circuitryand/or logic, and/or any other circuitry and/or logic, configured toperform the functionality of controllers 124 and/or 154, respectively.Additionally or alternatively, one or more functionalities ofcontrollers 124 and/or 154 may be implemented by logic, which may beexecuted by a machine and/or one or more processors, e.g., as describedbelow.

In one example, controller 124 may include circuitry and/or logic, forexample, one or more processors including circuitry and/or logic, tocause a wireless device, e.g., device 102, and/or a wireless station,e.g., a wireless STA implemented by device 102, to perform one or moreoperations, communications and/or functionalities, e.g., as describedherein.

In one example, controller 154 may include circuitry and/or logic, forexample, one or more processors including circuitry and/or logic, tocause a wireless device, e.g., device 140, and/or a wireless station,e.g., a wireless STA implemented by device 140, to perform one or moreoperations, communications and/or functionalities, e.g., as describedherein.

In some demonstrative embodiments, device 102 may include a messageprocessor 128 configured to generate, process and/or access one ormessages communicated by device 102.

In one example, message processor 128 may be configured to generate oneor more messages to be transmitted by device 102, and/or messageprocessor 128 may be configured to access and/or to process one or moremessages received by device 102, e.g., as described below. In oneexample, message processor 128 may be configured to process transmissionof one or more messages from a wireless station, e.g., a wireless STAimplemented by device 102; and/or message processor 128 may beconfigured to process reception of one or more messages by a wirelessstation, e.g., a wireless STA implemented by device 102.

In some demonstrative embodiments, device 140 may include a messageprocessor 158 configured to generate, process and/or access one ormessages communicated by device 140.

In one example, message processor 158 may be configured to generate oneor more messages to be transmitted by device 140, and/or messageprocessor 158 may be configured to access and/or to process one or moremessages received by device 140, e.g., as described below. In oneexample, message processor 158 may be configured to process transmissionof one or more messages from a wireless station, e.g., a wireless STAimplemented by device 140; and/or message processor 158 may beconfigured to process reception of one or more messages by a wirelessstation, e.g., a wireless STA implemented by device 140.

In some demonstrative embodiments, message processors 128 and/or 158 mayinclude circuitry, e.g., processor circuitry, memory circuitry,Media-Access Control (MAC) circuitry, Physical Layer (PHY) circuitry,and/or any other circuitry, configured to perform the functionality ofmessage processors 128 and/or 158. Additionally or alternatively, one ormore functionalities of message processors 128 and/or 158 may beimplemented by logic, which may be executed by a machine and/or one ormore processors, e.g., as described below.

In some demonstrative embodiments, at least part of the functionality ofmessage processor 128 may be implemented as part of radio 114, and/or atleast part of the functionality of message processor 158 may beimplemented as part of radio 144.

In some demonstrative embodiments, at least part of the functionality ofmessage processor 128 may be implemented as part of controller 124,and/or at least part of the functionality of message processor 158 maybe implemented as part of controller 154.

In other embodiments, the functionality of message processor 128 may beimplemented as part of any other element of device 102, and/or thefunctionality of message processor 158 may be implemented as part of anyother element of device 104.

In some demonstrative embodiments, at least part of the functionality ofcontroller 124 and/or message processor 128 may be implemented by anintegrated circuit, for example, a chip, e.g., a System in Chip (SoC).In one example, the chip or SoC may be configured to perform one or morefunctionalities of radio 114. For example, the chip or SoC may includeone or more elements of controller 124, one or more elements of messageprocessor 128, and/or one or more elements of radio 114. In one example,controller 124, message processor 128, and radio 114 may be implementedas part of the chip or SoC.

In other embodiments, controller 124, message processor 128 and/or radio114 may be implemented by one or more additional or alternative elementsof device 102.

In some demonstrative embodiments, at least part of the functionality ofcontroller 154 and/or message processor 158 may be implemented by anintegrated circuit, for example, a chip, e.g., a SoC. In one example,the chip or SoC may be configured to perform one or more functionalitiesof radio 144. For example, the chip or SoC may include one or moreelements of controller 154, one or more elements of message processor158, and/or one or more elements of radio 144. In one example,controller 154, message processor 158, and radio 144 may be implementedas part of the chip or SoC.

In other embodiments, controller 154, message processor 158 and/or radio144 may be implemented by one or more additional or alternative elementsof device 140.

In some demonstrative embodiments, devices 102 and/or 140 may beconfigured to perform the functionality of an access point (AP), e.g., aDMG AP, and/or a personal basic service set (PBSS) control point (PCP),e.g., a DMG PCP, for example, an AP/PCP STA, e.g., a DMG AP/PCP STA.

In some demonstrative embodiments, devices 102 and/or 140 may beconfigured to perform the functionality of a non-AP STA, e.g., a DMGnon-AP STA, and/or a non-PCP STA, e.g., a DMG non-PCP STA, for example,a non-AP/PCP STA, e.g., a DMG non-AP/PCP STA.

In one example, a station (STA) may include a logical entity that is asingly addressable instance of a medium access control (MAC) andphysical layer (PHY) interface to the wireless medium (WM). The STA mayperform any other additional or alternative functionality.

In one example, an AP may include an entity that contains a station(STA), e.g., one STA, and provides access to distribution services, viathe wireless medium (WM) for associated STAs. The AP may perform anyother additional or alternative functionality.

In one example, a personal basic service set (PBSS) control point (PCP)may include an entity that contains a STA, e.g., one station (STA), andcoordinates access to the wireless medium (WM) by STAs that are membersof a PBSS. The PCP may perform any other additional or alternativefunctionality.

In one example, a PBSS may include a directional multi-gigabit (DMG)basic service set (BSS) that includes, for example, one PBSS controlpoint (PCP). For example, access to a distribution system (DS) may notbe present, but, for example, an intra-PBSS forwarding service mayoptionally be present.

In one example, a PCP/AP STA may include a station (STA) that is atleast one of a PCP or an AP. The PCP/AP STA may perform any otheradditional or alternative functionality.

In one example, a non-AP STA may include a STA that is not containedwithin an AP. The non-AP STA may perform any other additional oralternative functionality.

In one example, a non-PCP STA may include a STA that is not a PCP. Thenon-PCP STA may perform any other additional or alternativefunctionality.

In one example, a non PCP/AP STA may include a STA that is not a PCP andthat is not an AP. The non-PCP/AP STA may perform any other additionalor alternative functionality.

In some demonstrative embodiments, devices 102 and 140 may be configuredto perform operations of dynamical scheduling and/or allocation, e.g.,as described below.

In some demonstrative embodiments, devices 102 and/or 140 may beconfigured to perform dynamic allocation of a service period (SP), forexample, to provide a solution to allocate channel time during scheduledservice periods (SPs), during different types of contention based accessperiods (CBAPs), and/or any other periods.

In some demonstrative embodiments, dynamic scheduling of an allocatedtime may be provided to a station, for example, using a grant frame,e.g., as described below.

In some demonstrative embodiments, controller 124 may cause radio 114 togenerate, process and/or transmit a grant frame, e.g., to device 140and/or to one or more other devices, for example, to dynamicallyallocate a time period, e.g., to device 140 and/or to one or more otherdevices, e.g., as described below.

In some demonstrative embodiments, radio 144 may receive the grantframe, and controller 154 may process the grant frame, and may performone or more operations according to the contents of the grant frame. Forexample, controller 154 may control communications by device 140according to the allocated time period allocated by the grant frame. Inone example, controller 154 may cause device 140 to communicate duringthe allocated time period, for example, if the allocated time period isto be allocated for communications by device 140, e.g., as describedbelow.

In some demonstrative embodiments, the grant frame may be generatedand/or transmitted by an AP, a PCP, an AP/PCP STA, a non-AP STA, anon-PCP STA, and/or a non-AP/PCP STA.

In some demonstrative embodiments, the grant frame may be addressed to,received by, and/or processed by, an AP, a PCP, an AP/PCP STA, a non-APSTA, a non-PCP STA, and/or a non-AP/PCP STA.

In some demonstrative embodiments, the Grant frame may include fieldsand/or subfields, which may be configured for time allocation and/orscheduling purposes.

In one example, configuring fields and/or subfields of a grant frameaccording to a conventional grant frame format, for example, a grantframe format in accordance with an IEEE 802.11 Standard, for example,IEEE 802.11ad-2012 (“IEEE P802.11ad-2012, IEEE Standard for InformationTechnology—Telecommunications and Information Exchange BetweenSystems—Local and Metropolitan Area Networks—Specific Requirements—Part11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY)Specifications—Amendment 3: Enhancements for Very High Throughput in the60 GHz Band”, 28 Dec., 2012), may not be applicable, efficient and/orsufficient, for example, to cover all cases and/or scenarios the grantframe may be used for.

In one example, configuring fields and/or subfields of a grant frameaccording to a conventional grant frame format, for example, a grantframe format in accordance with IEEE 802.11ad-2012, may not besufficient and/or efficient to enable using the grant frame, forexample, when exchanging the grant frame between peer stations (“peers”)in condition of multiple accesses, e.g., during a Contention basedAccess Period (CBAP). No solution is known to enable such an exchange,e.g., in accordance with the frame format defined by IEEE 802.11ad-2012.This is only one example, and there may be additional scenarios and/oruse cases, in which the conventional format of the grant frame may notbe applicable, sufficient and/or efficient.

In some demonstrative embodiments, a field in the grant frame, forexample, a field of an allocation duration or any other field in thegrant frame, may be defined and/or used, for example, depending on oneor more attributes of a scheduling to be performed by the grant frame,e.g., as described below.

In some demonstrative embodiments, a field in the grant frame, forexample, a field of an allocation duration or any other field in thegrant frame, may be defined and/or used, for example, depending onwhether the grant frame is to be used for scheduling purposes by an APSTA or PCP STA, or whether the grant frame is to be used to communicatein advance access between peers, for example, non-AP/PCP STAs, e.g., asdescribed below.

In some demonstrative embodiments, a device transmitting the grantframe, e.g., device 102, may be configured to indicate a use of theallocation duration field in the grant frame, for example, to a receiverof the grant frame, e.g., device 140, as described below.

In one example, the device transmitting the grant frame, e.g., device102, may be configured to indicate the use of the allocation durationfield in the grant frame, for example, in a manner, which may enable astateless interpretation of the field, e.g., by the receiver of thegrant frame.

Some demonstrative embodiments may be implemented, for example, to allowusing the same format of the grant frame, for example, even with respectto different types of access allocations, and/or may allow deliveringinformation relevant for a specific access type, for example, a serviceperiod, an allocated CBAP, a “CBAP only” allocation, and/or any otheraccess period, e.g., even if not supported by a conventional solution.

FIG. 2 is a schematic illustration of a grant frame 200, in accordancewith some demonstrative embodiments.

In some demonstrative embodiments, the grant frame 200 may betransmitted by a device, e.g., device 102 (FIG. 1), and received by adevice, e.g., device 140 (FIG. 1).

In some demonstrative embodiments, grant frame 200 may include a FrameControl (FC) field 202, for example, including 2 octets, e.g., 16 bits.

In some demonstrative embodiments, grant frame 200 may include aDuration/ID field 204, for example, following FC field 202, andincluding, for example, 2 octets, e.g., 16 bits.

In some demonstrative embodiments, Duration/ID field 204 may include aduration value, e.g., as described below.

In some demonstrative embodiments, grant frame 200 may include a ReceiveAddress (RA) field 206, for example, following duration field 204, andincluding, for example, 6 octets, e.g., 48 bits. In one example RA field206 may include, for example, an address, e.g., a Media Access Control(MAC) address, of a STA to receive grant frame 200.

In some demonstrative embodiments, grant frame 200 may include aTransmit Address (TA) field 208, for example, following RA field 206,and including, for example, 6 octets, e.g., 48 bits. In one example TAfield 208 may include, for example, an address, e.g., a MAC address, ofa STA to transmit grant frame 200.

In some demonstrative embodiments, grant frame 200 may include a DynamicAllocation Info field 210, for example, following TA field 208, andincluding, for example, 5 octets, e.g., 40 bits.

In some demonstrative embodiments, grant frame 200 may include aBeamforming (BF) control field 212, for example, following DynamicAllocation Info field 210, and including, for example, 2 octets, e.g.,16 bits.

In some demonstrative embodiments, grant frame 200 may include a FrameCheck Sequence (FCS) field 214, for example, following BF control field212, and including, for example, 4 octets, e.g., 32 bits.

FIG. 3 is a schematic illustration of a dynamic allocation informationfield 300, in accordance with some demonstrative embodiments. Forexample, the grant frame 200 of FIG. 2 may include the dynamicallocation information field 300 of FIG. 3.

In some demonstrative embodiments, dynamic allocation information field300 may include a Traffic Identifier (TID) subfield 302, e.g., including4 bits.

In some demonstrative embodiments, dynamic allocation information field300 may include an Allocation type subfield 304, for example, followingTID subfield 302, and including, for example, 3 bits.

In some demonstrative embodiments, dynamic allocation information field300 may include a Source Association Identifier (AID) subfield 306, forexample, following Allocation type subfield 304, and including, forexample, 8 bits.

In some demonstrative embodiments, dynamic allocation information field300 may include a Destination AID subfield 308, for example, followingSource AID subfield 306, and including, for example, 8 bits.

In some demonstrative embodiments, dynamic allocation information field300 may include an allocation duration subfield 310, for example,following Destination AID subfield 308, and including, for example, 16bits.

In some demonstrative embodiments, dynamic allocation information field300 may include an access mode indication subfield 314, which may beconfigured, for example, to indicate an access mode of an allocationaccording to a grant frame, e.g., grant frame 200 (FIG. 2), whichincludes dynamic allocation information field 300, e.g., as describedbelow.

In some demonstrative embodiments, as shown in FIG. 3, access modesubfield 314 may have a size of one bit.

In some demonstrative embodiments, as shown in FIG. 3, access modesubfield 314 may be included as part of, or instead of, a reservedsubfield 312 of dynamic allocation information field 300. In otherembodiments, access mode subfield 314 may be included in the form of, aspart of, or instead of, any other subfield of dynamic allocationinformation field 300.

In some demonstrative embodiments, some settings of the fields and/orsubfields of the grant frame, for example, in accordance with an IEEE802.11 Standard, e.g., according to IEEE 802.11ad-2012, may be suitablefor only some scenarios. For example, in one scenario, the AllocationDuration subfield 310 of the Dynamic Allocation Info field 300 may beset to include a granted duration of a SP or CBAP allocation, e.g., inmicroseconds, and duration field 214 (FIG. 2) of the Grant frame 200(FIG. 2) may be defined to cover a time to transmit remaining Grantframe(s), if required, a related inter frame spacing (IFS), and theAllocation Duration carried in the Dynamic Allocation Info field 210(FIG. 2).

For example, such settings may be best suited, for example, to aspecific scenario of delivering SP and/or CBAP allocations, for example,by an AP STA or a PCP STA, for example, to one or more non-AP and/ornon-PCP STAs.

In some demonstrative embodiments, devices 102 and/or 140 (FIG. 1) maybe configured to be able to use the grant frame 200 (FIG. 2) and/ordynamic allocation information field 300 with respect to one or moreadditional or alternative implementations, situations, procedures,operations, and/or scenarios, which may not be limited to only thisspecific scenario.

In some demonstrative embodiments, devices 102 and/or 140 (FIG. 1) maybe configured to use one or more fields and/or subfields of the grantframe 200 (FIG. 2) and/or dynamic allocation information field 300, forexample, to allocate and/or schedule one or more additional and/oralternative types of access periods, and/or to enable using the grantframe 200 (FIG. 1) by one or more other types of devices and/orstations, and/or for one or more other purposes, use cases, and/orscenarios, e.g., as described below.

In some demonstrative embodiments, a transmitter of grant frame 200(FIG. 2), e.g., device 102 (FIG. 1), may be configured to generateand/or set access mode subfield 314 to encode an indication of one ormore conditions to interpret the one or more fields of grant frame 200(FIG. 2), e.g., duration field 204 (FIG. 2), and/or one or moresubfields of dynamic allocation information field 300, e.g., allocationduration subfield 310, e.g., as described below.

In some demonstrative embodiments, a subfield of the dynamic allocationinfo field 300, for example, the reserved subfield 312, may beconfigured to include access mode subfield 314, for example, to encodean indication of one or more conditions to interpret the AllocationDuration subfield 310, e.g., as described below.

In other embodiments, devices 102 and/or 140 (FIG. 1) may use any othersubfield of the dynamic allocation info field 300 to encode anindication of one or more conditions to interpret the allocationduration subfield 310. In one example, a new, e.g., additional, subfieldmay be added to the dynamic allocation info field 300, for example,subsequent to the allocation duration subfield 310, or in any otherlocation.

Referring back to FIG. 1, in some demonstrative embodiments, a device,e.g., device 102 (FIG. 1), transmitting a grant frame, e.g., the grantframe 200 (FIG. 2), may be configured to set a value of the access modesubfield of the dynamic allocation info field 300 (FIG. 3), e.g., accessmode subfield 314 (FIG. 3), to indicate how one or more subfields of thegrant frame are to be interpreted and/or used, e.g., as described below.

In some demonstrative embodiments, a device receiving the grant frame,e.g., device 140 (FIG. 1), may be configured to process the value of theaccess mode subfield of the dynamic allocation info field, e.g., accessmode subfield 314 (FIG. 3), for example, to determine the access modeand/or type to be allocated and/or scheduled by the grant frame, e.g.,as described below.

In some demonstrative embodiments, controller 124 may be configured tocause a wireless station, for example, a wireless station implemented bydevice 102, to generate a grant frame, for example, grant frame 200(FIG. 2), including a duration field, e.g., duration field 204 (FIG. 2),and a dynamic allocation info field, e.g., dynamic allocation info field210 (FIG. 2).

In some demonstrative embodiments, controller 124 may be configured tocause a wireless station to generate the dynamic allocation info field,e.g., dynamic allocation info field 300 (FIG. 3), including anallocation duration subfield, e.g., allocation duration subfield 310(FIG. 3), and an access mode subfield, e.g., access mode subfield 314(FIG. 3).

In some demonstrative embodiments, controller 124 may be configured tocause the wireless station to generate the access mode subfield, e.g.,access mode subfield 314, to indicate an access mode of an allocationaccording to the grant frame, for example, an access mode to beallocated by grant frame 200 (FIG. 2), e.g., as described below.

In some demonstrative embodiments, controller 124 may be configured tocause the wireless station to transmit the grant frame. For example,controller 124 may cause radio 114 to process transmission the grantframe 200 (FIG. 2).

In some demonstrative embodiments, controller 124 may be configured tocause the wireless station to transmit the grant frame, e.g., grantframe 200 (FIG. 2), including dynamic allocation info subfield 300 (FIG.3), which includes access mode subfield 314 (FIG. 3), for example, as anon-AP/PCP station (STA).

In some demonstrative embodiments, controller 124 may be configured tocause the wireless station to transmit the grant frame, e.g., grantframe 200 (FIG. 2), including dynamic allocation info subfield 300 (FIG.3), which includes access mode subfield 314 (FIG. 3), for example, as anAP/PCP station (STA).

In other embodiments, controller 124 may be configured to cause thewireless station to transmit the grant frame, e.g., grant frame 200(FIG. 2), including dynamic allocation info subfield 300 (FIG. 3), whichincludes access mode subfield 314 (FIG. 3), for example, as any otherDMG STA or any other STA.

In some demonstrative embodiments, controller 124 may be configured tocause the wireless station to transmit the grant frame, e.g., grantframe 200 (FIG. 2), including dynamic allocation info subfield 300 (FIG.3), which includes access mode subfield 314 (FIG. 3), for example,during a Contention-Based Access period (CBAP).

In other embodiments, controller 124 may be configured to cause thewireless station to transmit the grant frame, e.g., grant frame 200(FIG. 2), including dynamic allocation info subfield 300 (FIG. 3), whichincludes access mode subfield 314 (FIG. 3), for example, during anyother allocation, period, and/or mode.

In some demonstrative embodiments, controller 124 may be configured tocause the wireless station to set the access mode subfield, e.g., accessmode subfield 314 (FIG. 3), to a predefined value, which may beconfigured to indicate that the grant frame is to indicate a time of anattempt to obtain a future TxOP, for example, between a first STA and asecond STA. The first STA may include a STA transmitting the grantframe, for example, a STA having an address indicated by TA field 208(FIG. 2), e.g., the STA implemented by device 102; and/or the second STAmay include, for example, a STA having an address indicated by the RAfield 206 (FIG. 2), e.g., the STA implemented by device 140.

In some demonstrative embodiments, controller 124 may be configured tocause the wireless station to set the access mode subfield, e.g., accessmode subfield 314 (FIG. 3), to a predefined value, which may beconfigured to indicate that a start time of an attempt to obtain a TxOPis to be determined based on a sum of a value in the allocation durationsubfield, e.g., allocation duration subfield 310 (FIG. 3), and a valuein the duration field, e.g., duration field 214 (FIG. 2).

In some demonstrative embodiments, the predefined value may be “1”. Forexample, controller 124 may be configured to cause the wireless stationto set the access mode subfield, e.g., access mode subfield 314 (FIG.3), to the value of “1”, to indicate that a start time of an attempt toobtain a TxOP is to be determined based on a sum of a value in theallocation duration subfield, e.g., allocation duration subfield 310(FIG. 3), and a value in the duration field, e.g., duration field 214(FIG. 2).

In some demonstrative embodiments, the start time of the attempt toobtain the TxOP may be determined, for example, based on the sum of thevalue in allocation duration subfield 310 (FIG. 3), and the value induration field 214 (FIG. 2), and based on a Physical Layer (PHY)Transmit end (PHY.TXEND) indication, e.g., as described below.

In some demonstrative embodiments, controller 124 may be configured tocause the wireless station to generate and/or set the access modesubfield 314 (FIG. 3), for example, as follows:

TABLE 1 Access Mode Access CBAP definition in an Extended schedule modeelement or in a DMG beacon value CBAP with Destination AssociationIdentifier 1 (AID) equal to broadcast AID or in a DMG parameters fieldof a Beacon interval (BI) introduced by DMG beacon with CBAP onlysubfield is set to 1 Any other CBAP definitions 0

In some demonstrative embodiments, controller 124 may be configured tocause the wireless station to generate and/or set the access modesubfield 314 (FIG. 3), for example, to indicate a use of the allocationduration subfield 310 (FIG. 3), for example, as described below. Inother embodiments, any additional or alternative use may be defined.

In some demonstrative embodiments, when the Dynamic Allocation Infosubfield is transmitted within a Grant frame with the access modesubfield equal to 0, for example, by an AP or PCP STA, e.g., during aGrant period (GP) and/or an announcement transmission interval (ATI),the Allocation Duration subfield may contain the granted duration of SPor CBAP allocations.

In some demonstrative embodiments, controller 124 may be configured tocause the wireless station implemented by device 102 to perform thefunctionality of an AP or PCP STA, and to generate and transmit a grantframe 200 (FIG. 2), for example, during a Grant period (GP) and/or anannouncement transmission interval (ATI), for example, to allocate a SPor CBAP allocation.

According to these embodiments, controller 124 may be configured tocause the wireless station implemented by device 102 to set theallocation duration subfield 310 (FIG. 3) to include a valuerepresenting the granted duration of the SP or CBAP allocation.

According to these embodiments, controller 124 may be configured tocause the wireless station implemented by device 102 to set access modesubfield 314 (FIG. 3), for example, to the value of “0”, e.g., toindicate that the allocation duration subfield 310 (FIG. 3) is toinclude the granted duration of the SP or CBAP allocation.

In some demonstrative embodiments, the Dynamic Allocation Info subfieldmay be transmitted within a Grant frame with the Access Mode subfieldequal to 1, for example, by a STA, e.g., to indicate a time the STA isattempting to obtain a Transmit Opportunity (TXOP). According to theseembodiments, e.g., when the Access Mode subfield equal to 1, the sum ofthe value in the Allocation Duration field plus a value in the Durationfield of the grant frame, may indicate the time, for example, inrelation to a PHY-TXEND.indication primitive of the Grant frame.

In some demonstrative embodiments, controller 124 may be configured tocause the wireless station implemented by device 102 to perform thefunctionality of a STA, e.g., a PCP/AP STA or a non-PCP/AP STA; and togenerate and transmit a grant frame 200 (FIG. 2), for example, toindicate a start time of an attempt to obtain a TxOP.

According to these embodiments, controller 124 may be configured tocause the wireless station implemented by device 102 to set theallocation duration subfield 310 (FIG. 3) and/or duration field 214(FIG. 2) to include values representing an offset to be used incalculation of a start time of the attempt to obtain the TxOP.

According to these embodiments, controller 124 may be configured tocause the wireless station implemented by device 102 to set access modesubfield 314 (FIG. 3), for example, to the value of “1”, e.g., toindicate that the start time of the attempt to obtain the TxOP, forexample, in relation to the PHY-TXEND.indication primitive of the grantframe 200 (FIG. 2), is to be determined, for example, based on the sumof the value in the allocation duration subfield 310 (FIG. 3) and thevalue in the duration field 214 (FIG. 2).

In some demonstrative embodiments, controller 154 may be configured tocause a wireless station, for example, a wireless station implemented bydevice 140, to process reception of a grant frame (“the received grantframe”). For example, controller 154 may cause radio 144 and/or messageprocessor 158 to process reception of the frame.

In one example, the received grant frame may include the frametransmitted by device 102.

In some demonstrative embodiments, controller 154 may be configured tocause a wireless station, for example, a wireless station implemented bydevice 140, to process reception of a received grant frame, for example,grant frame 200 (FIG. 2), including a duration field, e.g., durationfield 204 (FIG. 2), and a Dynamic Allocation Info field, e.g., dynamicallocation info field 210 (FIG. 2).

In some demonstrative embodiments, controller 154 may be configured tocause the wireless station to process the dynamic allocation info field,e.g., dynamic allocation info field 300 (FIG. 3), including anallocation duration subfield, e.g., allocation duration subfield 310(FIG. 3), and an access mode subfield, e.g., access mode subfield 314(314).

In some demonstrative embodiments, controller 154 may be configured tocause the wireless station to process the received grant frame, e.g.,grant frame 200 (FIG. 2), including dynamic allocation info subfield 300(FIG. 3), which includes access mode subfield 314 (FIG. 3), for example,as a non-AP/PCP station (STA).

In some demonstrative embodiments, controller 154 may be configured tocause the wireless station to process the received grant frame, e.g.,grant frame 200 (FIG. 2), including dynamic allocation info subfield 300(FIG. 3), which includes access mode subfield 314 (FIG. 3), for example,as an AP/PCP station (STA).

In other embodiments, controller 154 may be configured to cause thewireless station to process the received grant frame, e.g., grant frame200 (FIG. 2), including dynamic allocation info subfield 300 (FIG. 3),which includes access mode subfield 314 (FIG. 3), for example, as anyother DMG STA or any other STA.

In some demonstrative embodiments, controller 154 may be configured tocause the wireless station to process the received grant frame, e.g.,grant frame 200 (FIG. 2), including dynamic allocation info subfield 300(FIG. 3), which includes access mode subfield 314 (FIG. 3), for example,during a Contention-Based Access period (CBAP).

In other embodiments, controller 154 may be configured to cause thewireless station to process the received grant frame, e.g., grant frame200 (FIG. 2), including dynamic allocation info subfield 300 (FIG. 3),which includes access mode subfield 314 (FIG. 3), for example, duringany other allocation, period, and/or mode.

In some demonstrative embodiments, controller 154 may be configured tocause the wireless station to process the access mode subfield, e.g.,access mode subfield 314 (FIG. 3), to determine an access mode of anallocation according to the grant frame, for example, an access mode tobe allocated and/or scheduled by grant frame 200 (FIG. 2), e.g., asdescribed above.

In some demonstrative embodiments, controller 154 may be configured tocause the wireless station to operate according to the access modeindicated by the access mode subfield.

In some demonstrative embodiments, controller 154 may be configured tocause the wireless station to determine a start time of an attempt toobtain a TxOP, for example, when the access mode subfield, e.g., accessmode subfield 314 (FIG. 3), includes a predefined value, e.g., the value“1”.

In some demonstrative embodiments, controller 154 may be configured tocause the wireless station to determine the start time of the attempt toobtain the TxOP, for example, based on a sum of a value in theallocation duration subfield, e.g., allocation duration subfield 310(FIG. 3), and a value in the duration field, e.g., duration field 204(FIG. 2), for example, when the access mode subfield, e.g., access modesubfield 314 (FIG. 3), includes the predefined value, e.g., the value“1”.

In some demonstrative embodiments, controller 154 may be configured tocause the wireless station to determine the start time of the attempt toobtain the TxOP, for example, in relation to the PHY-TXEND.indicationprimitive of the grant frame 200 (FIG. 2).

In some demonstrative embodiments, controller 154 may be configured tocause the wireless station to determine the start time of the attempttop obtain the TxOP, for example, based on the sum of the value inallocation duration subfield 310 (FIG. 3), and the value in durationfield 214 (FIG. 2), and based on the PHY.TXEND indication of the grantframe 200 (FIG. 2), e.g., as described below.

In some demonstrative embodiments, controller 154 may be configured tocause the wireless station to process the received grant frame based onthe access mode subfield 314 (FIG. 3), for example, in accordance withTable 1.

In some demonstrative embodiments, devices 102 may be configured togenerate and/or set access mode subfield 314 (FIG. 1) to encode anindication of one or more conditions to interpret the one or more fieldsof grant frame 200 (FIG. 2), e.g., duration field 204 (FIG. 2), and/orone or more subfields of dynamic allocation information field 300, e.g.,allocation duration subfield 310; and/or device 140 may be configured toprocess one or more fields of grant frame 200 (FIG. 2), e.g., durationfield 204 (FIG. 2), and/or one or more subfields of dynamic allocationinformation field 300 (FIG. 3), e.g., allocation duration subfield 310(FIG. 3), for example, based on access mode subfield 314 (FIG. 3), e.g.,as described above.

In some demonstrative embodiments, devices 102 and/or 140 may beconfigured to use another manner, for example, instead of, or inaddition to, the Access Mode indication 314 (FIG. 3), of indicating theone or more conditions to interpret and/or process one or more fields ofgrant frame 200 (FIG. 2), e.g., duration field 204 (FIG. 2), and/or oneor more subfields of dynamic allocation information field 300 (FIG. 3),e.g., allocation duration subfield 310 (FIG. 3), e.g., as describedbelow.

In some demonstrative embodiments, device 102 may be configured to set acombination of at least first and second fields and/or subfields of agrant frame, e.g., grant frame 200 (FIG. 2), to indicate that the grantframe is to indicate a start time of a future attempt to obtain a TxOP,for example, between a first STA, e.g., the STA implemented by device102, and a second STA, e.g., the STA implemented by device 140, e.g., asdescribed below.

In some demonstrative embodiments, device 140 may be configured todetermine that a grant frame, e.g., grant frame 200 (FIG. 2), is toindicate an attempt to obtain a future TxOP, for example, between afirst STA, e.g., the STA implemented by device 102, and a second STA,e.g., the STA implemented by device 140, for example, based on acombination of at least first and second fields and/or subfields of thegrant frame, e.g., as described below.

In some demonstrative embodiments, devices 102 and/or 140 may beconfigured to use a predefined combination and/or relationship of aSource AID, e.g., Source AID field 306 (FIG. 3), and a Destination AID,e.g., Destination AID field 308 (FIG. 3), in a grant frame, e.g., grantframe 200 (FIG. 2), for example, to indicate that the grant frame is toallocate and/or schedule a future TxOP.

In some demonstrative embodiments, devices 102 and/or 140 may beconfigured to use a predefined combination and/or relationship of aSource AID, e.g., Source AID field 306 (FIG. 3), and a Destination AID,e.g., Destination AID field 308 (FIG. 3), in a grant frame, e.g., grantframe 200 (FIG. 2), for example, to indicate that the time a STAattempts to obtain a future TXOP may be defined, for example, based onthe sum of the value in the Allocation Duration field plus a value inthe Duration field. For example, the start time of the attempt to obtainthe TxOP may be defined in relation to the PHY-TXEND.indicationprimitive of the grant frame.

In some demonstrative embodiments, controller 124 may be configured tocause a STA implemented by device 102 to set a combination of the SourceAID field 306 (FIG. 3) and the Destination AID field 308 (FIG. 3) in agrant frame, e.g., grant frame 200 (FIG. 2), to indicate that the grantframe is to allocate and/or schedule a future TxOP, for example, betweena STA having an address indicated by TA field 208 (FIG. 3), e.g., theSTA implemented by device 102, and a receiver of the grant frame, e.g.,a STA having an address indicated by RA field 206 (FIG. 2).

In some demonstrative embodiments, controller 154 may be configured tocause a STA implemented by device 140 to determine that a grant frame,e.g., grant frame 200, is to indicate a start time of an attempt toobtain a future TxOP, for example, between the STA implemented by device140, e.g., a STA having the address indicated by RA field 206 (FIG. 2)and a STA having an address indicated by TA field 208 (FIG. 2), forexample, if the Source AID field 306 (FIG. 3) and the Destination AIDfield 308 (FIG. 3) of the grant frame are set to a predefinedcombination of values.

In some demonstrative embodiments, a STA sending the grant frame, e.g.,device 102, may set a value of the Destination AID field 308 (FIG. 3) tobe equal to a broadcast AID, and a value in the Source AID field 306(FIG. 3) to be equal to an AID of the STA that sends the grant frame,e.g., the STA implemented by device 102, for example, to indicate thecase of obtaining the TxOP, e.g., as follows:

TABLE 2 Allocation Destination Mode Source AID AID rule 1 Unicast AID ofBroadcast AID value in the an originating Allocation STA Duration fieldplus a value in the Duration field indicates time to obtain TXOP 1Broadcast AID Any value Another defined behavior 1 Unicast AID UnicastAID Another defined behavior 0 Any value Any value Another definedbehavior

In some demonstrative embodiments, the STA sending the grant frame,e.g., device 102, may set a value of the Destination AID field 308 (FIG.3), and/or a value in the Source AID field 306 (FIG. 3) to one or moreother combinations of values, e.g., according to Table 2, to indicateone or more other types of allocations and/or interpretations of one ormore fields and/or subfields of the grant frame.

In some demonstrative embodiments, controller 124 may be configured tocause a wireless station, for example, a wireless station implemented bydevice 102, to generate a grant frame, for example, grant frame 200(FIG. 2), including a Source AID field, e.g., Source AID field 306 (FIG.3), a Destination AID field, e.g., Destination AID field 308 (FIG. 3), aduration field, e.g., duration field 204 (FIG. 2), and a DynamicAllocation Info field, e.g., Dynamic Allocation Info field 210 (FIG. 2),including an allocation duration subfield, e.g., allocation durationsubfield 310 (FIG. 3).

In some demonstrative embodiments, controller 124 may be configured tocause the wireless station to set the Source AID field and theDestination AID field to indicate that a start time of an attempt toobtain a TxOP is to be determined based on a sum of a value of theallocation duration subfield and a value of the duration field, e.g.,according to Table 2.

In some demonstrative embodiments, controller 124 may be configured tocause the wireless station to set the Source AID field 306 (FIG. 3) to aunicast AID of the wireless station implemented by device 102, and toset the Destination AID field 308 (FIG. 3) to a broadcast AID, e.g., toindicate that the start time of the attempt to obtain the TxOP is to bedetermined based on the sum of the value of the allocation durationsubfield 310 (FIG. 3) and a value of the duration field 204 (FIG. 2).

In some demonstrative embodiments, a device receiving the grant frame,e.g., device 140, may process the grant frame according to therelationship between the Source AID and Destination AID, e.g., accordingto Table 2.

In some demonstrative embodiments, controller 154 may be configured tocause a wireless station, for example, a wireless station implemented bydevice 140, to process a received grant frame, for example, grant frame200 (FIG. 2), including a Source AID field, e.g., Source AID field 306(FIG. 3), a Destination AID field, e.g., Destination AID field 308 (FIG.3), a duration field, e.g., duration field 204 (FIG. 2), and a DynamicAllocation Info field, e.g., Dynamic Allocation Info field 210 (FIG. 2),including an allocation duration subfield, e.g., allocation durationsubfield 310 (FIG. 3).

In some demonstrative embodiments, controller 154 may be configured tocause the wireless station to determine a start time of an attempt toobtain a TxOP based on a sum of a value of the allocation durationsubfield and a value of the duration field, for example, when the SourceAID field and the Destination AID field have a predefined setting.

In some demonstrative embodiments, controller 154 may be configured tocause the wireless station to determine the start time of the attempt toobtain the TxOP, for example, based on the sum of the value of theallocation duration subfield 310 (FIG. 3) and the value of the durationfield 204 (FIG. 2), for example, when the Source AID field 306 (FIG. 3)includes a unicast AID of the wireless station from which the grantframe 200 (FIG. 2) is received, and the Destination AID field 308 (FIG.3) includes a broadcast AID.

Reference is made to FIG. 4, which schematically illustrates a method ofdynamic allocation using a grant frame, in accordance with somedemonstrative embodiments. For example, one or more of the operations ofthe method of FIG. 4 may be performed by one or more elements of asystem, e.g., system 100 (FIG. 1), for example, one or more wirelessdevices, e.g., device 102 (FIG. 1) and/or device 140 (FIG. 1), acontroller, e.g., controller 124 (FIG. 1) and/or controller 154 (FIG.1), a radio, e.g., radio 114 (FIG. 1) and/or radio 144 (FIG. 1), and/ora message processor, e.g., message processor 128 (FIG. 1) and/or messageprocessor 158 (FIG. 1).

As indicated at block 402, the method may include generating a grantframe including a duration field and a Dynamic Allocation Info field,the Dynamic Allocation Info field including an allocation durationsubfield and an access mode subfield, the access mode subfield toindicate an access mode of an allocation according to the grant frame.For example, controller 124 (FIG. 1) may cause message processor 128(FIG. 1) to generate grant frame 200 (FIG. 2) including dynamicallocation info field 300 (FIG. 3), which may include access modeindication 314 (FIG. 3) to indicate the access mode of an allocationaccording to grant frame 200 (FIG. 2), e.g., as described above.

As indicated at bock 404, the method may include setting the access modesubfield to a predefined value to indicate that a start time of anattempt to obtain a TxOP is to be determined based on a sum of a valuein the allocation duration subfield and a value in the duration field.For example, controller 124 (FIG. 1) may cause message processor 128(FIG. 1) to set access mode indication 314 (FIG. 3) to the value “1”,e.g., as described above.

As indicated at block 406, the method may include transmitting the grantframe. For example, controller 124 (FIG. 1) may cause radio 114 (FIG. 1)to transmit the grant frame 200 (FIG. 2), e.g., as described above.

As indicated at block 408, the method may include processing a receivedgrant frame including a duration field and a Dynamic Allocation Infofield, the Dynamic Allocation Info field including an allocationduration subfield and an access mode subfield, the access mode subfieldto indicate an access mode of an allocation according to the grantframe. For example, controller 154 (FIG. 1) may control messageprocessor 158 (FIG. 1) to process reception of grant frame 200 (FIG. 2)including dynamic allocation info field 300 (FIG. 3), which may includeaccess mode indication 314 (FIG. 3) to indicate the access mode of anallocation according to grant frame 200 (FIG. 2), e.g., as describedabove.

As indicated at block 410, the method may include operating according tothe access mode. For example, controller 154 (FIG. 1) may control one ormore operations of device 140 (FIG. 1), for example, based on the accessmode indicated by access mode indication 314 (FIG. 3), e.g., asdescribed above.

Reference is made to FIG. 5, which schematically illustrates a method ofdynamic allocation using a grant frame, in accordance with somedemonstrative embodiments. For example, one or more of the operations ofthe method of FIG. 5 may be performed by one or more elements of asystem, e.g., system 100 (FIG. 1), for example, one or more wirelessdevices, e.g., device 102 (FIG. 1) and/or device 140 (FIG. 1), acontroller, e.g., controller 124 (FIG. 1) and/or controller 154 (FIG.1), a radio, e.g., radio 114 (FIG. 1) and/or radio 144 (FIG. 1), and/ora message processor, e.g., message processor 128 (FIG. 1) and/or messageprocessor 158 (FIG. 1).

As indicated at block 502, the method may include generating a grantframe including a Source AID field, a Destination AID field, a durationfield, and a Dynamic Allocation Info field, the Dynamic Allocation Infofield including an allocation duration subfield, the Source AID fieldand the Destination AID field set to indicate that a start time of anattempt to obtain a TxOP is to be determined based on a sum of a valueof the allocation duration subfield and a value of the duration field.For example, controller 124 (FIG. 1) may cause message processor 128(FIG. 1) to generate grant frame 200 (FIG. 2) including dynamicallocation info field 300 (FIG. 3), which may include Source AID field306 (FIG. 3) and Destination AID field 308 (FIG. 3) set to indicate thata start time of an attempt to obtain a TxOP is to be determined based ona sum of a value of the allocation duration subfield 310 (FIG. 3), and avalue of the duration field 204 (FIG. 2), e.g., as described above.

As indicated at bock 504, the method may include setting the Source AIDfield to a unicast AID of a wireless station to transmit the grantframe, and setting the Destination AID field to a broadcast AID, forexample, to indicate that the start time of the attempt to obtain a TxOPis to be determined based on the sum of the value of the allocationduration subfield and the value of the duration field. For example,controller 124 (FIG. 1) may cause message processor 128 (FIG. 1) to setSource AID field 306 (FIG. 3) to a unicast AID of the STA of device 102(FIG. 1) to transmit the grant frame 200 (FIG. 2), and to set theDestination address field 308 (FIG. 3) to a broadcast AID, e.g., asdescribed above.

As indicated at block 506, the method may include transmitting the grantframe. For example, controller 124 (FIG. 1) may cause radio 114 (FIG. 1)to transmit the grant frame 200 (FIG. 2), e.g., as described above.

As indicated at block 508, the method may include processing a receivedgrant frame including a Source AID field, a Destination AID field, aduration field, and a Dynamic Allocation Info field, the DynamicAllocation Info field including an allocation duration subfield. Forexample, controller 154 (FIG. 1) may control message processor 158(FIG. 1) to process reception of grant frame 200 (FIG. 2) includingdynamic allocation info field 300 (FIG. 3), which may include Source AIDfield 306 (FIG. 3) and Destination AID field 308 (FIG. 3), e.g., asdescribed above.

As indicated at block 510, the method may include, when the Source AIDfield and the Destination AID field have a predefined setting,determining a start time of a TxOP based on a sum of a value of theallocation duration subfield and a value of the duration field. Forexample, controller 154 (FIG. 1) may determine a start time of anattempt to obtain a TxOP based on a sum of a value of the allocationduration subfield 310 (FIG. 3) and a value of the duration field 204(FIG. 2), for example, when the Source AID field 306 (FIG. 3) is set tothe unicast AID of a sender of grant frame 200 (FIG. 2) and theDestination AID field 308 (FIG. 3) is set to a broadcast AID, e.g., asdescribed above.

Reference is made to FIG. 6, which schematically illustrates a productof manufacture 600, in accordance with some demonstrative embodiments.Product 600 may include a non-transitory machine-readable storage medium602 to store logic 604, which may be used, for example, to perform atleast part of the functionality of devices 102 and/or 140 (FIG. 1),transmitters 118 and/or 148 (FIG. 1), receivers 116 and/or 146 (FIG. 1),controllers 124 and/or 154 (FIG. 1), and/or to perform one or moreoperations of the methods of FIGS. 4 and/or 5. The phrase“non-transitory machine-readable medium” is directed to include allcomputer-readable media, with the sole exception being a transitorypropagating signal.

In some demonstrative embodiments, product 600 and/or machine-readablestorage medium 602 may include one or more types of computer-readablestorage media capable of storing data, including volatile memory,non-volatile memory, removable or non-removable memory, erasable ornon-erasable memory, writeable or re-writeable memory, and the like. Forexample, machine-readable storage medium 602 may include, RAM, DRAM,Double-Data-Rate DRAM (DDR-DRAM), SDRAM, static RAM (SRAM), ROM,programmable ROM (PROM), erasable programmable ROM (EPROM), electricallyerasable programmable ROM (EEPROM), Compact Disk ROM (CD-ROM), CompactDisk Recordable (CD-R), Compact Disk Rewriteable (CD-RW), flash memory(e.g., NOR or NAND flash memory), content addressable memory (CAM),polymer memory, phase-change memory, ferroelectric memory,silicon-oxide-nitride-oxide-silicon (SONOS) memory, a disk, a floppydisk, a hard drive, an optical disk, a magnetic disk, a card, a magneticcard, an optical card, a tape, a cassette, and the like. Thecomputer-readable storage media may include any suitable media involvedwith downloading or transferring a computer program from a remotecomputer to a requesting computer carried by data signals embodied in acarrier wave or other propagation medium through a communication link,e.g., a modem, radio or network connection.

In some demonstrative embodiments, logic 604 may include instructions,data, and/or code, which, if executed by a machine, may cause themachine to perform a method, process and/or operations as describedherein. The machine may include, for example, any suitable processingplatform, computing platform, computing device, processing device,computing system, processing system, computer, processor, or the like,and may be implemented using any suitable combination of hardware,software, firmware, and the like.

In some demonstrative embodiments, logic 604 may include, or may beimplemented as, software, a software module, an application, a program,a subroutine, instructions, an instruction set, computing code, words,values, symbols, and the like. The instructions may include any suitabletype of code, such as source code, compiled code, interpreted code,executable code, static code, dynamic code, and the like. Theinstructions may be implemented according to a predefined computerlanguage, manner or syntax, for instructing a processor to perform acertain function. The instructions may be implemented using any suitablehigh-level, low-level, object-oriented, visual, compiled and/orinterpreted programming language, such as C, C++, Java, BASIC, Matlab,Pascal, Visual BASIC, assembly language, machine code, and the like.

EXAMPLES

The following examples pertain to further embodiments.

Example 1 includes an apparatus comprising circuitry configured to causea wireless station to generate a grant frame comprising a duration fieldand a Dynamic Allocation Info field, the Dynamic Allocation Info fieldcomprising an allocation duration subfield and an access mode subfield,the access mode subfield to indicate an access mode of an allocationaccording to the grant frame; and transmit the grant frame.

Example 2 includes the subject matter of Example 1, and optionally,configured to cause the wireless station to set the access mode subfieldto a predefined value to indicate that a start time of an attempt toobtain a Transmit Opportunity (TxOP) is to be determined based on a sumof a value in the allocation duration subfield and a value in theduration field.

Example 3 includes the subject matter of Example 2, and optionally,wherein the start time of the attempt to obtain the TxOP is to bedetermined based on the sum, and a Physical Layer (PHY) Transmit end(PHY.TXEND) indication.

Example 4 includes the subject matter of Example 2 or 3, and optionally,wherein the predefined value is “1”.

Example 5 includes the subject matter of any one of Examples 1-4, andoptionally, wherein the access mode subfield is in a reserved subfieldof the Dynamic Allocation Info field.

Example 6 includes the subject matter of any one of Examples 1-5, andoptionally, configured to cause the wireless station to transmit thegrant frame as a non access point (AP) or personal basic service set(PBSS) control point (PCP) (non-AP/PCP) station (STA).

Example 7 includes the subject matter of any one of Examples 1-5, andoptionally, configured to cause the wireless station to transmit thegrant frame as an access point (AP) or personal basic service set (PBSS)control point (PCP) (AP/PCP) station (STA).

Example 8 includes the subject matter of any one of Examples 1-7, andoptionally, configured to cause the wireless station to transmit thegrant frame during a Contention-Based Access period (CBAP).

Example 9 includes the subject matter of any one of Examples 1-8, andoptionally, wherein the wireless station is a Direct Multi Gigabit (DMG)station.

Example 10 includes the subject matter of any one of Examples 1-9, andoptionally, comprising a transmitter to transmit the grant frame.

Example 11 includes the subject matter of any one of Examples 1-10, andoptionally, comprising one or more antennas, a memory, and a processor.

Example 12 includes an apparatus comprising circuitry configured tocause a wireless station to process a received grant frame comprising aduration field and a Dynamic Allocation Info field, the DynamicAllocation Info field comprising an allocation duration subfield and anaccess mode subfield, the access mode subfield to indicate an accessmode of an allocation according to the grant frame; and operateaccording to the access mode.

Example 13 includes the subject matter of Example 12, and optionally,configured to cause the wireless station to, when the access modesubfield comprises a predefined value, determine a start time of anattempt to obtain a Transmit Opportunity (TxOP) based on a sum of avalue in the allocation duration subfield and a value in the durationfield.

Example 14 includes the subject matter of Example 13, and optionally,configured to cause the wireless station to determine the start time ofthe attempt to obtain the TxOP based on the sum, and a Physical Layer(PHY) Transmit end (PHY.TXEND) indication.

Example 15 includes the subject matter of Example 13 or 14, andoptionally, wherein the predefined value is “1”.

Example 16 includes the subject matter of any one of Examples 12-15, andoptionally, wherein the access mode subfield is in a reserved subfieldof the Dynamic Allocation Info field.

Example 17 includes the subject matter of any one of Examples 12-16, andoptionally, configured to cause the wireless station to process thegrant frame as a non access point (AP) or personal basic service set(PBSS) control point (PCP) (non-AP/PCP) station (STA).

Example 18 includes the subject matter of any one of Examples 12-17, andoptionally, configured to cause the wireless station to process thegrant frame as an access point (AP) or personal basic service set (PBSS)control point (PCP) (AP/PCP) station (STA).

Example 19 includes the subject matter of any one of Examples 12-18, andoptionally, configured to cause the wireless station to process thegrant frame received during a Contention-Based Access period (CBAP).

Example 20 includes the subject matter of any one of Examples 12-19, andoptionally, wherein the wireless station is a Direct Multi Gigabit (DMG)station.

Example 21 includes the subject matter of any one of Examples 12-20, andoptionally, comprising a receiver to receive the grant frame.

Example 22 includes the subject matter of any one of Examples 12-21, andoptionally, comprising one or more antennas, a memory, and a processor.

Example 23 includes an apparatus comprising circuitry configured tocause a wireless station to generate a grant frame comprising a SourceAssociation identification (AID) field, a Destination AID field, aduration field, and a Dynamic Allocation Info field, the DynamicAllocation Info field comprising an allocation duration subfield, theSource AID field and the Destination AID field being set to indicatethat a start time of an attempt to obtain a Transmit Opportunity (TxOP)is to be determined based on a sum of a value of the allocation durationsubfield and a value of the duration field; and transmit the grantframe.

Example 24 includes the subject matter of Example 23, and optionally,wherein the Source AID field comprises a unicast AID of the wirelessstation, and the Destination AID field comprises a broadcast AID.

Example 25 includes the subject matter of Example 23 or 24, andoptionally, wherein the start time of the attempt to obtain the TxOP isto be determined based on the sum, and a Physical Layer (PHY) Transmitend (PHY.TXEND) indication.

Example 26 includes the subject matter of any one of Examples 23-25, andoptionally, configured to cause the wireless station to transmit thegrant frame as a non access point (AP) or personal basic service set(PBSS) control point (PCP) (non-AP/PCP) station (STA).

Example 27 includes the subject matter of any one of Examples 23-26, andoptionally, configured to cause the wireless station to transmit thegrant frame as an access point (AP) or personal basic service set (PBSS)control point (PCP) (AP/PCP) station (STA).

Example 28 includes the subject matter of any one of Examples 23-27, andoptionally, configured to cause the wireless station to transmit thegrant frame during a Contention-Based Access period (CBAP).

Example 29 includes the subject matter of any one of Examples 23-28, andoptionally, wherein the wireless station is a Direct Multi Gigabit (DMG)station.

Example 30 includes the subject matter of any one of Examples 23-29, andoptionally, comprising a transmitter to transmit the grant frame.

Example 31 includes the subject matter of any one of Examples 23-30, andoptionally, comprising one or more antennas, a memory, and a processor.

Example 32 includes an apparatus comprising circuitry configured tocause a wireless station to process a received grant frame comprising aSource Association identification (AID) field, a Destination AID field,a duration field, and a Dynamic Allocation Info field, the DynamicAllocation Info field comprising an allocation duration subfield; andwhen the Source AID field and the Destination AID field have apredefined setting, determine a start time of an attempt to obtain aTransmit Opportunity (TxOP) based on a sum of a value of the allocationduration subfield and a value of the duration field.

Example 33 includes the subject matter of Example 32, and optionally,configured to cause the wireless station to determine the start time ofthe attempt to obtain the TxOP based on the sum, and a Physical Layer(PHY) Transmit end (PHY.TXEND) indication.

Example 34 includes the subject matter of Example 32 or 33, andoptionally, configured to cause the wireless station to process thegrant frame as a non access point (AP) or personal basic service set(PBSS) control point (PCP) (non-AP/PCP) station (STA).

Example 35 includes the subject matter of Example 32 or 33, andoptionally, configured to cause the wireless station to process thegrant frame as an access point (AP) or personal basic service set (PBSS)control point (PCP) (AP/PCP) station (STA).

Example 36 includes the subject matter of any one of Examples 32-35, andoptionally, configured to cause the wireless station to process thegrant frame received during a Contention-Based Access period (CBAP).

Example 37 includes the subject matter of any one of Examples 32-36, andoptionally, wherein the wireless station is a Direct Multi Gigabit (DMG)station.

Example 38 includes the subject matter of any one of Examples 32-37, andoptionally, comprising a receiver to receive the grant frame.

Example 39 includes the subject matter of any one of Examples 32-38, andoptionally, comprising one or more antennas, a memory, and a processor.

Example 40 includes a method to be performed by a wireless station, themethod comprising generating a grant frame comprising a duration fieldand a Dynamic Allocation Info field, the Dynamic Allocation Info fieldcomprising an allocation duration subfield and an access mode subfield,the access mode subfield to indicate an access mode of an allocationaccording to the grant frame; and transmitting the grant frame.

Example 41 includes the subject matter of Example 40, and optionally,comprising setting the access mode subfield to a predefined value toindicate that a start time of an attempt to obtain a TransmitOpportunity (TxOP) is to be determined based on a sum of a value in theallocation duration subfield and a value in the duration field.

Example 42 includes the subject matter of Example 41, and optionally,wherein the start time of the attempt to obtain the TxOP is to bedetermined based on the sum, and a Physical Layer (PHY) Transmit end(PHY.TXEND) indication.

Example 43 includes the subject matter of Example 41 or 42, andoptionally, wherein the predefined value is “1”.

Example 44 includes the subject matter of any one of Examples 40-43, andoptionally, wherein the access mode subfield is in a reserved subfieldof the Dynamic Allocation Info field.

Example 45 includes the subject matter of any one of Examples 40-44, andoptionally, comprising transmitting the grant frame as a non accesspoint (AP) or personal basic service set (PBSS) control point (PCP)(non-AP/PCP) station (STA).

Example 46 includes the subject matter of any one of Examples 40-44, andoptionally, comprising transmitting the grant frame as an access point(AP) or personal basic service set (PBSS) control point (PCP) (AP/PCP)station (STA).

Example 47 includes the subject matter of any one of Examples 40-46, andoptionally, comprising transmitting the grant frame during aContention-Based Access period (CBAP).

Example 48 includes the subject matter of any one of Examples 40-47, andoptionally, wherein the wireless station is a Direct Multi Gigabit (DMG)station.

Example 49 includes a method to be performed by a wireless station, themethod comprising processing a received grant frame comprising aduration field and a Dynamic Allocation Info field, the DynamicAllocation Info field comprising an allocation duration subfield and anaccess mode subfield, the access mode subfield to indicate an accessmode of an allocation according to the grant frame; and operatingaccording to the access mode.

Example 50 includes the subject matter of Example 49, and optionally,comprising, when the access mode subfield comprises a predefined value,determining a start time of an attempt to obtain a Transmit Opportunity(TxOP) based on a sum of a value in the allocation duration subfield anda value in the duration field.

Example 51 includes the subject matter of Example 50, and optionally,comprising determining the start time of the attempt to obtain the TxOPbased on the sum, and a Physical Layer (PHY) Transmit end (PHY.TXEND)indication.

Example 52 includes the subject matter of Example 50 or 51, andoptionally, wherein the predefined value is “1”.

Example 53 includes the subject matter of any one of Examples 49-52, andoptionally, wherein the access mode subfield is in a reserved subfieldof the Dynamic Allocation Info field.

Example 54 includes the subject matter of any one of Examples 49-53, andoptionally, comprising processing the grant frame as a non access point(AP) or personal basic service set (PBSS) control point (PCP)(non-AP/PCP) station (STA).

Example 55 includes the subject matter of any one of Examples 49-54, andoptionally, comprising processing the grant frame as an access point(AP) or personal basic service set (PBSS) control point (PCP) (AP/PCP)station (STA).

Example 56 includes the subject matter of any one of Examples 49-55, andoptionally, comprising processing the grant frame received during aContention-Based Access period (CBAP).

Example 57 includes the subject matter of any one of Examples 49-56, andoptionally, wherein the wireless station is a Direct Multi Gigabit (DMG)station.

Example 58 includes a method to be performed by a wireless station, themethod comprising generating a grant frame comprising a SourceAssociation identification (AID) field, a Destination AID field, aduration field, and a Dynamic Allocation Info field, the DynamicAllocation Info field comprising an allocation duration subfield, theSource AID field and the Destination AID field being set to indicatethat a start time of an attempt to obtain a Transmit Opportunity (TxOP)is to be determined based on a sum of a value of the allocation durationsubfield and a value of the duration field; and transmitting the grantframe.

Example 59 includes the subject matter of Example 58, and optionally,wherein the Source AID field comprises a unicast AID of the wirelessstation, and the Destination AID field comprises a broadcast AID.

Example 60 includes the subject matter of Example 58 or 59, andoptionally, wherein the start time of the attempt to obtain the TxOP isto be determined based on the sum, and a Physical Layer (PHY) Transmitend (PHY.TXEND) indication.

Example 61 includes the subject matter of any one of Examples 58-60, andoptionally, comprising transmitting the grant frame as a non accesspoint (AP) or personal basic service set (PBSS) control point (PCP)(non-AP/PCP) station (STA).

Example 62 includes the subject matter of any one of Examples 58-61, andoptionally, comprising transmitting the grant frame as an access point(AP) or personal basic service set (PBSS) control point (PCP) (AP/PCP)station (STA).

Example 63 includes the subject matter of any one of Examples 58-62, andoptionally, comprising transmitting the grant frame during aContention-Based Access period (CBAP).

Example 64 includes the subject matter of any one of Examples 58-63, andoptionally, wherein the wireless station is a Direct Multi Gigabit (DMG)station.

Example 65 includes a method to be performed by a wireless station, themethod comprising processing a received grant frame comprising a SourceAssociation identification (AID) field, a Destination AID field, aduration field, and a Dynamic Allocation Info field, the DynamicAllocation Info field comprising an allocation duration subfield; andwhen the Source AID field and the Destination AID field have apredefined setting, determining a start time of an attempt to obtain aTransmit Opportunity (TxOP) based on a sum of a value of the allocationduration subfield and a value of the duration field.

Example 66 includes the subject matter of Example 65, and optionally,comprising determining the start time of the attempt to obtain the TxOPbased on the sum, and a Physical Layer (PHY) Transmit end (PHY.TXEND)indication.

Example 67 includes the subject matter of Example 65 or 66, andoptionally, comprising processing the grant frame as a non access point(AP) or personal basic service set (PBSS) control point (PCP)(non-AP/PCP) station (STA).

Example 68 includes the subject matter of Example 65 or 66, andoptionally, comprising processing the grant frame as an access point(AP) or personal basic service set (PBSS) control point (PCP) (AP/PCP)station (STA).

Example 69 includes the subject matter of any one of Examples 65-68, andoptionally, comprising processing the grant frame received during aContention-Based Access period (CBAP).

Example 70 includes the subject matter of any one of Examples 65-69, andoptionally, wherein the wireless station is a Direct Multi Gigabit (DMG)station.

Example 71 includes a product comprising one or more tangiblecomputer-readable non-transitory storage media comprisingcomputer-executable instructions operable to, when executed by at leastone computer processor, enable the at least one computer processor toimplement one or more operations at a wireless station, the operationscomprising generating a grant frame comprising a duration field and aDynamic Allocation Info field, the Dynamic Allocation Info fieldcomprising an allocation duration subfield and an access mode subfield,the access mode subfield to indicate an access mode of an allocationaccording to the grant frame; and transmitting the grant frame.

Example 72 includes the subject matter of Example 71, and optionally,wherein the operations comprise setting the access mode subfield to apredefined value to indicate that a start time of an attempt to obtain aTransmit Opportunity (TxOP) is to be determined based on a sum of avalue in the allocation duration subfield and a value in the durationfield.

Example 73 includes the subject matter of Example 72, and optionally,wherein the start time of the attempt to obtain the TxOP is to bedetermined based on the sum, and a Physical Layer (PHY) Transmit end(PHY.TXEND) indication.

Example 74 includes the subject matter of Example 72 or 73, andoptionally, wherein the predefined value is “1”.

Example 75 includes the subject matter of any one of Examples 71-74, andoptionally, wherein the access mode subfield is in a reserved subfieldof the Dynamic Allocation Info field.

Example 76 includes the subject matter of any one of Examples 71-75, andoptionally, wherein the operations comprise transmitting the grant frameas a non access point (AP) or personal basic service set (PBSS) controlpoint (PCP) (non-AP/PCP) station (STA).

Example 77 includes the subject matter of any one of Examples 71-75, andoptionally, wherein the operations comprise transmitting the grant frameas an access point (AP) or personal basic service set (PBSS) controlpoint (PCP) (AP/PCP) station (STA).

Example 78 includes the subject matter of any one of Examples 71-77, andoptionally, wherein the operations comprise transmitting the grant frameduring a Contention-Based Access period (CBAP).

Example 79 includes the subject matter of any one of Examples 71-78, andoptionally, wherein the wireless station is a Direct Multi Gigabit (DMG)station.

Example 80 includes a product comprising one or more tangiblecomputer-readable non-transitory storage media comprisingcomputer-executable instructions operable to, when executed by at leastone computer processor, enable the at least one computer processor toimplement one or more operations at a wireless station, the operationscomprising processing a received grant frame comprising a duration fieldand a Dynamic Allocation Info field, the Dynamic Allocation Info fieldcomprising an allocation duration subfield and an access mode subfield,the access mode subfield to indicate an access mode of an allocationaccording to the grant frame; and operating according to the accessmode.

Example 81 includes the subject matter of Example 80, and optionally,wherein the operations comprise, when the access mode subfield comprisesa predefined value, determining a start time of an attempt to obtain aTransmit Opportunity (TxOP) based on a sum of a value in the allocationduration subfield and a value in the duration field.

Example 82 includes the subject matter of Example 81, and optionally,wherein the operations comprise determining the start time of theattempt to obtain the TxOP based on the sum, and a Physical Layer (PHY)Transmit end (PHY.TXEND) indication.

Example 83 includes the subject matter of Example 81 or 82, andoptionally, wherein the predefined value is “1”.

Example 84 includes the subject matter of any one of Examples 80-83, andoptionally, wherein the access mode subfield is in a reserved subfieldof the Dynamic Allocation Info field.

Example 85 includes the subject matter of any one of Examples 80-84, andoptionally, wherein the operations comprise processing the grant frameas a non access point (AP) or personal basic service set (PBSS) controlpoint (PCP) (non-AP/PCP) station (STA).

Example 86 includes the subject matter of any one of Examples 80-85, andoptionally, wherein the operations comprise processing the grant frameas an access point (AP) or personal basic service set (PBSS) controlpoint (PCP) (AP/PCP) station (STA).

Example 87 includes the subject matter of any one of Examples 80-86, andoptionally, wherein the operations comprise processing the grant framereceived during a Contention-Based Access period (CBAP).

Example 88 includes the subject matter of any one of Examples 80-87, andoptionally, wherein the wireless station is a Direct Multi Gigabit (DMG)station.

Example 89 includes a product comprising one or more tangiblecomputer-readable non-transitory storage media comprisingcomputer-executable instructions operable to, when executed by at leastone computer processor, enable the at least one computer processor toimplement one or more operations at a wireless station, the operationscomprising generating a grant frame comprising a Source Associationidentification (AID) field, a Destination AID field, a duration fieldand a Dynamic Allocation Info field, the Dynamic Allocation Info fieldcomprising an allocation duration subfield, the Source AID field and theDestination AID field being set to indicate that a start time of anattempt to obtain a Transmit Opportunity (TxOP) is to be determinedbased on a sum of a value of the allocation duration subfield and avalue of the duration field; and transmitting the grant frame.

Example 90 includes the subject matter of Example 89, and optionally,wherein the Source AID field comprises a unicast AID of the wirelessstation, and the Destination AID field comprises a broadcast AID.

Example 91 includes the subject matter of Example 89 or 90, andoptionally, wherein the start time of the attempt to obtain the TxOP isto be determined based on the sum, and a Physical Layer (PHY) Transmitend (PHY.TXEND) indication.

Example 92 includes the subject matter of any one of Examples 89-91, andoptionally, wherein the operations comprise transmitting the grant frameas a non access point (AP) or personal basic service set (PBSS) controlpoint (PCP) (non-AP/PCP) station (STA).

Example 93 includes the subject matter of any one of Examples 89-92, andoptionally, wherein the operations comprise transmitting the grant frameas an access point (AP) or personal basic service set (PBSS) controlpoint (PCP) (AP/PCP) station (STA).

Example 94 includes the subject matter of any one of Examples 89-93, andoptionally, wherein the operations comprise transmitting the grant frameduring a Contention-Based Access period (CBAP).

Example 95 includes the subject matter of any one of Examples 89-94, andoptionally, wherein the wireless station is a Direct Multi Gigabit (DMG)station.

Example 96 includes a product comprising one or more tangiblecomputer-readable non-transitory storage media comprisingcomputer-executable instructions operable to, when executed by at leastone computer processor, enable the at least one computer processor toimplement one or more operations at a wireless station, the operationscomprising processing a received grant frame comprising a SourceAssociation identification (AID) field, a Destination AID field, aduration field, and a Dynamic Allocation Info field, the DynamicAllocation Info field comprising an allocation duration subfield; andwhen the Source AID field and the Destination AID field have apredefined setting, determining a start time of an attempt to obtain aTransmit Opportunity (TxOP) based on a sum of a value of the allocationduration subfield and a value of the duration field.

Example 97 includes the subject matter of Example 96, and optionally,wherein the operations comprise determining the start time of theattempt to obtain the TxOP based on the sum, and a Physical Layer (PHY)Transmit end (PHY.TXEND) indication.

Example 98 includes the subject matter of Example 96 or 97, andoptionally, wherein the operations comprise processing the grant frameas a non access point (AP) or personal basic service set (PBSS) controlpoint (PCP) (non-AP/PCP) station (STA).

Example 99 includes the subject matter of Example 96 or 97, andoptionally, wherein the operations comprise processing the grant frameas an access point (AP) or personal basic service set (PBSS) controlpoint (PCP) (AP/PCP) station (STA).

Example 100 includes the subject matter of any one of Examples 96-99,and optionally, wherein the operations comprise processing the grantframe received during a Contention-Based Access period (CBAP).

Example 101 includes the subject matter of any one of Examples 96-100,and optionally, wherein the wireless station is a Direct Multi Gigabit(DMG) station.

Example 102 includes an apparatus of wireless communication, theapparatus comprising means for generating at a wireless station a grantframe comprising a duration field and a Dynamic Allocation Info field,the Dynamic Allocation Info field comprising an allocation durationsubfield and an access mode subfield, the access mode subfield toindicate an access mode of an allocation according to the grant frame;and means for transmitting the grant frame.

Example 103 includes the subject matter of Example 102, and optionally,comprising means for setting the access mode subfield to a predefinedvalue to indicate that a start time of an attempt to obtain a TransmitOpportunity (TxOP) is to be determined based on a sum of a value in theallocation duration subfield and a value in the duration field.

Example 104 includes the subject matter of Example 103, and optionally,wherein the start time of the attempt to obtain the TxOP is to bedetermined based on the sum, and a Physical Layer (PHY) Transmit end(PHY.TXEND) indication.

Example 105 includes the subject matter of Example 103 or 104, andoptionally, wherein the predefined value is “1”.

Example 106 includes the subject matter of any one of Examples 102-105,and optionally, wherein the access mode subfield is in a reservedsubfield of the Dynamic Allocation Info field.

Example 107 includes the subject matter of any one of Examples 102-106,and optionally, comprising means for transmitting the grant frame as anon access point (AP) or personal basic service set (PBSS) control point(PCP) (non-AP/PCP) station (STA).

Example 108 includes the subject matter of any one of Examples 102-106,and optionally, comprising means for transmitting the grant frame as anaccess point (AP) or personal basic service set (PBSS) control point(PCP) (AP/PCP) station (STA).

Example 109 includes the subject matter of any one of Examples 102-108,and optionally, comprising means for transmitting the grant frame duringa Contention-Based Access period (CBAP).

Example 110 includes the subject matter of any one of Examples 102-109,and optionally, wherein the wireless station is a Direct Multi Gigabit(DMG) station.

Example 111 includes an apparatus of wireless communication, theapparatus comprising means for processing at a wireless station areceived grant frame comprising a duration field and a DynamicAllocation Info field, the Dynamic Allocation Info field comprising anallocation duration subfield and an access mode subfield, the accessmode subfield to indicate an access mode of an allocation according tothe grant frame; and means for operating according to the access mode.

Example 112 includes the subject matter of Example 111, and optionally,comprising means for, when the access mode subfield comprises apredefined value, determining a start time of an attempt to obtain aTransmit Opportunity (TxOP) based on a sum of a value in the allocationduration subfield and a value in the duration field.

Example 113 includes the subject matter of Example 112, and optionally,comprising means for determining the start time of the attempt to obtainthe TxOP based on the sum, and a Physical Layer (PHY) Transmit end(PHY.TXEND) indication.

Example 114 includes the subject matter of Example 112 or 113, andoptionally, wherein the predefined value is “1”.

Example 115 includes the subject matter of any one of Examples 111-114,and optionally, wherein the access mode subfield is in a reservedsubfield of the Dynamic Allocation Info field.

Example 116 includes the subject matter of any one of Examples 111-115,and optionally, comprising means for processing the grant frame as a nonaccess point (AP) or personal basic service set (PBSS) control point(PCP) (non-AP/PCP) station (STA).

Example 117 includes the subject matter of any one of Examples 111-116,and optionally, comprising means for processing the grant frame as anaccess point (AP) or personal basic service set (PBSS) control point(PCP) (AP/PCP) station (STA).

Example 118 includes the subject matter of any one of Examples 111-117,and optionally, comprising means for processing the grant frame receivedduring a Contention-Based Access period (CBAP).

Example 119 includes the subject matter of any one of Examples 111-118,and optionally, wherein the wireless station is a Direct Multi Gigabit(DMG) station.

Example 120 includes an apparatus of wireless communication, theapparatus comprising means for generating at a wireless station a grantframe comprising a Source Association identification (AID) field, aDestination AID field, a duration field, and a Dynamic Allocation Infofield, the Dynamic Allocation Info field comprising an allocationduration subfield, the Source AID field and the Destination AID fieldbeing set to indicate that a start time of an attempt to obtain aTransmit Opportunity (TxOP) is to be determined based on a sum of avalue of the allocation duration subfield and a value of the durationfield; and means for transmitting the grant frame.

Example 121 includes the subject matter of Example 120, and optionally,wherein the Source AID field comprises a unicast AID of the wirelessstation, and the Destination AID field comprises a broadcast AID.

Example 122 includes the subject matter of Example 120 or 121, andoptionally, wherein the start time of the attempt to obtain the TxOP isto be determined based on the sum, and a Physical Layer (PHY) Transmitend (PHY.TXEND) indication.

Example 123 includes the subject matter of any one of Examples 120-122,and optionally, comprising means for transmitting the grant frame as anon access point (AP) or personal basic service set (PBSS) control point(PCP) (non-AP/PCP) station (STA).

Example 124 includes the subject matter of any one of Examples 120-123,and optionally, comprising means for transmitting the grant frame as anaccess point (AP) or personal basic service set (PBSS) control point(PCP) (AP/PCP) station (STA).

Example 125 includes the subject matter of any one of Examples 120-124,and optionally, comprising means for transmitting the grant frame duringa Contention-Based Access period (CBAP).

Example 126 includes the subject matter of any one of Examples 120-125,and optionally, wherein the wireless station is a Direct Multi Gigabit(DMG) station.

Example 127 includes an apparatus of wireless communication, theapparatus comprising means for processing at a wireless station areceived grant frame comprising a Source Association identification(AID) field, a Destination AID field, a duration field, and a DynamicAllocation Info field, the Dynamic Allocation Info field comprising anallocation duration subfield; and means for, when the Source AID fieldand the Destination AID field have a predefined setting, determining astart time of an attempt to obtain a Transmit Opportunity (TxOP) basedon a sum of a value of the allocation duration subfield and a value ofthe duration field.

Example 128 includes the subject matter of Example 127, and optionally,comprising means for determining the start time of the attempt to obtainthe TxOP based on the sum, and a Physical Layer (PHY) Transmit end(PHY.TXEND) indication.

Example 129 includes the subject matter of Example 127 or 128, andoptionally, comprising means for processing the grant frame as a nonaccess point (AP) or personal basic service set (PBSS) control point(PCP) (non-AP/PCP) station (STA).

Example 130 includes the subject matter of Example 127 or 128, andoptionally, comprising means for processing the grant frame as an accesspoint (AP) or personal basic service set (PBSS) control point (PCP)(AP/PCP) station (STA).

Example 131 includes the subject matter of any one of Examples 127-130,and optionally, comprising means for processing the grant frame receivedduring a Contention-Based Access period (CBAP).

Example 132 includes the subject matter of any one of Examples 127-131,and optionally, wherein the wireless station is a Direct Multi Gigabit(DMG) station.

Functions, operations, components and/or features described herein withreference to one or more embodiments, may be combined with, or may beutilized in combination with, one or more other functions, operations,components and/or features described herein with reference to one ormore other embodiments, or vice versa.

While certain features have been illustrated and described herein, manymodifications, substitutions, changes, and equivalents may occur tothose skilled in the art. It is, therefore, to be understood that theappended claims are intended to cover all such modifications and changesas fall within the true spirit of the disclosure.

What is claimed is:
 1. An apparatus comprising a memory, and a processorconfigured to cause a wireless station to: generate a grant framecomprising a duration field and a Dynamic Allocation Info field, theDynamic Allocation Info field comprising an allocation duration subfieldand an access mode subfield, the access mode subfield to indicate anaccess mode of an allocation according to the grant frame, the accessmode subfield comprising a predefined value to indicate that a starttime of an attempt to obtain a Transmit Opportunity (TxOP) is to bedetermined based on a Physical Layer (PHY) Transmit end (PHY.TXEND)indication, and on a sum of a value in the allocation duration subfieldand a value in the duration field; and transmit the grant frame.
 2. Theapparatus of claim 1, wherein the access mode subfield is in a reservedsubfield of the Dynamic Allocation Info field.
 3. The apparatus of claim1 configured to cause the wireless station to transmit the grant frameas a non access point (AP) or personal basic service set (PBSS) controlpoint (PCP) (non-AP/PCP) station (STA).
 4. The apparatus of claim 1configured to cause the wireless station to transmit the grant frame asan access point (AP) or personal basic service set (PBSS) control point(PCP) (AP/PCP) station (STA).
 5. The apparatus of claim 1 configured tocause the wireless station to transmit the grant frame during aContention-Based Access period (CBAP).
 6. The apparatus of claim 1,wherein the wireless station is a Direct Multi Gigabit (DMG) station. 7.The apparatus of claim 1 comprising a transmitter to transmit the grantframe.
 8. The apparatus of claim 1 comprising one or more antennas. 9.An apparatus comprising a memory, and a processor configured to cause awireless station to: generate a grant frame comprising a duration fieldand a Dynamic Allocation Info field, the Dynamic Allocation Info fieldcomprising an allocation duration subfield and an access mode subfield,the access mode subfield to indicate an access mode of an allocationaccording to the grant frame, the access mode subfield comprising avalue of “1” to indicate that a start time of an attempt to obtain aTransmit Opportunity (TxOP) is to be determined based on a sum of avalue in the allocation duration subfield and a value in the durationfield; and transmit the grant frame.
 10. The apparatus of claim 9configured to cause the wireless station to transmit the grant frameduring a Contention-Based Access period (CBAP).
 11. The apparatus ofclaim 9, wherein the start time of the attempt to obtain the TxOP is tobe determined based on the sum, and a Physical Layer (PHY) Transmit end(PHY.TXEND) indication.
 12. An apparatus comprising a memory, and aprocessor configured to cause a wireless station to: process a receivedgrant frame comprising a duration field and a Dynamic Allocation Infofield, the Dynamic Allocation Info field comprising an allocationduration subfield and an access mode subfield, the access mode subfieldto indicate an access mode of an allocation according to the grantframe; and operate according to the access mode, and, when the accessmode subfield comprises a predefined value, determine a start time of anattempt to obtain a Transmit Opportunity (TxOP) based on a PhysicalLayer (PHY) Transmit end (PHY.TXEND) indication, and on a sum of a valuein the allocation duration subfield and a value in the duration field.13. The apparatus of claim 12 configured to cause the wireless stationto process the grant frame as a non access point (AP) or personal basicservice set (PBSS) control point (PCP) (non-AP/PCP) station (STA). 14.The apparatus of claim 12, wherein the predefined value is “1”.
 15. Theapparatus of claim 12 configured to cause the wireless station toprocess the grant frame received during a Contention-Based Access period(CBAP).
 16. The apparatus of claim 12 comprising one or more antennas.17. An apparatus comprising a memory, and a processor configured tocause a wireless station to: generate a grant frame comprising a SourceAssociation identification (AID) field, a Destination AID field, aduration field, and a Dynamic Allocation Info field, the DynamicAllocation Info field comprising an allocation duration subfield, theSource AID field and the Destination AID field being set to indicatethat a start time of an attempt to obtain a Transmit Opportunity (TxOP)is to be determined based on a sum of a value of the allocation durationsubfield and a value of the duration field; and transmit the grantframe.
 18. The apparatus of claim 17, wherein the Source AID fieldcomprises a unicast AID of said wireless station, and the DestinationAID field comprises a broadcast AID.
 19. The apparatus of claim 17,wherein the start time of the attempt to obtain the TxOP is to bedetermined based on the sum, and a Physical Layer (PHY) Transmit end(PHY.TXEND) indication.
 20. The apparatus of claim 17 comprising one ormore antennas.
 21. A product comprising one or more tangiblecomputer-readable non-transitory storage media comprisingcomputer-executable instructions operable to, when executed by at leastone computer processor, enable the at least one computer processor tocause a wireless station to: generate a grant frame comprising aduration field and a Dynamic Allocation Info field, the DynamicAllocation Info field comprising an allocation duration subfield and anaccess mode subfield, the access mode subfield to indicate an accessmode of an allocation according to the grant frame, the access modesubfield comprising a predefined value to indicate that a start time ofan attempt to obtain a Transmit Opportunity (TxOP) is to be determinedbased on a Physical Layer (PHY) Transmit end (PHY.TXEND) indication, andon a sum of a value in the allocation duration subfield and a value inthe duration field; and transmit the grant frame.
 22. The product ofclaim 21, wherein said instructions, when executed, cause the wirelessstation to transmit the grant frame as a non access point (AP) orpersonal basic service set (PBSS) control point (PCP) (non-AP/PCP)station (STA).
 23. The product of claim 21, wherein the predefined valueis “1”.
 24. The product of claim 21, wherein said instructions, whenexecuted, cause the wireless station to transmit the grant frame duringa Contention-Based Access period (CBAP).
 25. The product of claim 21,wherein the wireless station is a Direct Multi Gigabit (DMG) station.